Improvement in stove-grates



E. HARRINGTON.

Stove Grae.

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Uisi're STATES .armar raros.

EBENEZER HARRINGTON, OF BOSTON, MASSACHUSETTS.

iWlPROVElVI ENT IN STOVEUGRATES.

S,.\eeilieation forming part of Letters Patent No. 36,952, dated November 1S, 1S 2.

To @ZZ wimit it may concern/.-

Be it known that I, EBENEZER I-IARRING- TON, a subject ofthe Queen of Great Britain, but now residing in Boston, in the county of Suffolk and State ot' Massachusetts, have invented a new and useful Improvement in Stoves or Furnaces; and I dohereby declare the same to be fully described in the following specilieation, and represeiited in the accompanying drawings, of which Figure l denotes a top view of a stove iireplace provided with my invention; Fig. 2 a transverse section, and Fig. 3 a longitudinal section, of such. Fig. a is a top view, and Fig. 5 an under side view, of the sliding frame which is applied to the grate, as will be hereinafter explained.

rIhe purpose of my invention is to enable a grate to be readily cleared of ashes, as wel]` as to have an entire mass of coal discharged from it, as circumstances may require; and my invention consists in an arrangement and application of a sliding frame or slider and aseries of pins or projections extending therefrom (each of such pins being either solid or tubular) with the grate and iireplaee, so that they may operate together in manner as hereinafter set forth.

In the drawings, A. denotes a fire-place of an ordinary cooking-stove as provided with a grate, B, which consists of a series of parallel bars, a, united together at their ends by crossbars b b. This grate is arranged within the lower part of the fire-place and upon a rectangular frame, O, provided with a series of transverse and parallel bars, b b', de., and two longitudinal bars, c c, arranged together, as shown in Figs. et and 5. rIlhe frame O has trnunions or journals d e projected from the middle parts of its two ends, as shown in the said Figs. Lt aud 5, and also in Fig. 3. These trunnions go through holes or bearings j" j", made through the end walls or plates of theire-place or those of the ashlpit, the journals being cylindrical, so as to enable both the grate and its supporting-:frame to be inultaneously revolved transversely. nu studorprojectiou, g, extendsfrom the middle of the grate downward between and below the two bars c c ol the frame C, and has apin, It, passed through it just belowsuch bars, the same being asshown in Figs. 2 and 3. The frame C is shorter than the grate, in order that such fraaie may be moved longitudinally back and forth under the grate while the latter is horizontal and held stationary by the ends of the tire-place. From the bars of the said frame or slider O there extends upward between and above the bars of the grate a series of projections or pins, t' t', &c., each of which may be either solid or tubular. If tubular, the pin should open through its supporting-bar, in order that a current of air may pass upward into and through the pin, while there may be fuel in astate of ignition on the grates. By so making euch projection or pin (via, with an airpassage) it willbe preserved more or less from ecoming destroyed by the great heat to which it may be subjected. By rapid movements of the frame O longitudinally back and forth its pins or projections 't' t', &c., will be moved in and caused to agitate any fuel when on the grate, and by so doing will induce the discharge of ashes from such fuel. One of the trunnions of the grate should extend through the end of the fire-place or beyond its ash-pit, as shown in the drawings, in order that by laying hold of such trunnion aperson may either move the frame C longitudinally or turn it transversely. Then the said frame and its projections are so turned, the grate audits frame will be caused to turn with them, and thus by means of my invention I have the opportunity of either discharging ashes from the fuel while the grate may be horizontal, or l can turn both the grate and its projections completely over, so as not only to discharge coal or cinders from the fireplace, but from between the said projections, as well as from between the grate-bars.

I am aware of the devices explained and claimed inthe United States patents numbered 14,200 and 29,298. I do notclaii'n such, as they materially differ from my invent-ion, in which the grate is so applied to its clearer as not only to remain at rest while being cleaned of ashes, but to tip or turn with and be turned by the clearer, while the latter may be iu the act ol" being tipped or turned trai'isversely; nor do I claim a. grate-clearer or sifrer anl grate as constructed and combined together and with the lire-place, and so as to operate as described in the specilication of the application made by Charles Mowry, and rejected in March, 1862, as in this latter the sifter, while in movement to discharge ashes from the coals on the grate,

plays vertically, and is incapable of having,` longitudinal reciprocating movements imparted to it; and, furthermore, the said sitter has straight bars, instead of several series of pokers or studs, and, besides, the grate is made with trunnions projecting from its ends; but with my invention the grate has no trnnnions extended directly from it, as the trnnnions which support the grate are extended from the sifter, and they perform the double ofce of supporting both the grate and the sifter and operating the latter, so as to impart to it its necessary longitudinal movements. They thus render unnecessary any levers or equivalent appliauces disposed under the grate (as in Mowrys invention) `for the purpose of operating` the said grate, such levers, when so used, being,`

' applied to the fireplace A in manner and so as to operate the said frame C and the grate relatively to each other, as Well as with respect to the fireplace, substantially as specified.

EBENEZER llARRINGTON.

"Witnesses:

R. H0 EDDY, F P. HALE, Jr. 

